In Louisiana, southeast of New Orleans, two storage tanks estimated to be filled with up to 160,000 barrels (6.7 million gallons) of oil are reported to be leaking into the Mississippi River. It was first noticed on September 1, 2005 by an aircraft flying overhead. Officials are not certain whether the tanks are the cause of the leak or how full the tanks are. Inspection of the storage tanks from the ground is impossible due to flooding in the area.